197609472 has 144 divisors (see below), whose sum is σ = 582603840. Its totient is φ = 64512000.

The previous prime is 197609449. The next prime is 197609473. The reversal of 197609472 is 274906791.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (197609473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1308597 + ... + 1308747.

It is an arithmetic number, because the mean of its divisors is an integer number (4045860).

Almost surely, 2^197609472 is an apocalyptic number.

197609472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197609472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291301920).

197609472 is an abundant number, since it is smaller than the sum of its proper divisors (384994368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197609472 is a wasteful number, since it uses less digits than its factorization.

197609472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 197609472 is about 14057.3636219598. The cubic root of 197609472 is about 582.4642202660.

The spelling of 197609472 in words is "one hundred ninety-seven million, six hundred nine thousand, four hundred seventy-two".